{"product_id":"eheim-jager-200w-16-inch-aquarium-heater-built-in-calibration-for-accurate-temperature","title":"Eheim Jager 200W 16-Inch Aquarium Heater — Built-in Calibration for Accurate Temperature","description":"\u003ch2\u003ePrecision temperature control for aquariums\u003c\/h2\u003e\n\u003cp\u003eThe Eheim Jäger 200-watt heater, sized at 16 inches, is built for mid to larger tanks. It combines German engineering with a practical calibration feature that lets you fine tune the readout to the actual water temperature. This can help you maintain a stable environment for your aquatic life without guesswork, especially as room conditions shift.\u003c\/p\u003e\n\u003cp\u003eKey benefits include a built-in calibration function and a length that helps the unit sit discreetly in most setups. While no heater can guarantee perfect precision in every tank, the calibration option provides a clear pathway to closer alignment between the display and the water temperature, improving confidence in temperature management over time.\u003c\/p\u003e\n\u003ch3\u003eCalibration in real life\u003c\/h3\u003e\n\u003cp\u003eCalibration can be performed while the heater is in the tank, but a smaller testing volume — such as a 5-gallon bucket — speeds up the process and reduces the time needed to lock in the right setting. You’ll need a dependable thermometer or temperature probe to compare readings accurately.\u003c\/p\u003e\n\u003cp\u003eSteps to align the readings:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat a small volume of water and note the heater’s indicated setting.\u003c\/li\u003e\n  \u003cli\u003eCompare it to the actual temperature with a reliable thermometer.\u003c\/li\u003e\n  \u003cli\u003eTurn the red indicating arrow until the heater’s display matches the real temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat to expect when you install\u003c\/h3\u003e\n\u003cp\u003eIn practice, the 16-inch form and 200W rating provide steady warmth in moderate aquariums. The unit is designed with robust components and a straightforward setup process, helping you maintain a comfortable range for your fish and plants. Place the heater away from direct air streams or strong currents to minimize readings fluctuations and improve consistency.\u003c\/p\u003e\n\u003ch3\u003eCore specs at a glance\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e200-watt Jäger heater designed for aquarium use\u003c\/li\u003e\n  \u003cli\u003e16-inch long body for even heat distribution\u003c\/li\u003e\n  \u003cli\u003eBuilt-in calibration to reduce temperature deviation\u003c\/li\u003e\n  \u003cli\u003eMade in Germany with a heritage of engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor best results, pair this heater with a reliable temperature monitor and a thoughtful placement strategy. The aim is stable warmth—presented as a possibility rather than a guaranteed outcome—so you can observe the positive impact on your tank’s environment over time.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Eheim Jäger heater include a built-in calibration feature?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The heater provides an internal calibration option to align the display with actual water temperature.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I calibrate the Eheim Jäger heater safely?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Calibrate in a small bucket (about 5 gallons) with a reliable thermometer, then adjust the red arrow to match the real temp.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Eheim","offers":[{"title":"Default Title","offer_id":53552486351177,"sku":"B00BTN9R2E","price":52.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0986\/1781\/9465\/files\/eheim-jager-heater-16-inch-in-tank-view.jpg?v=1766255519","url":"https:\/\/petvita.co.uk\/products\/eheim-jager-200w-16-inch-aquarium-heater-built-in-calibration-for-accurate-temperature","provider":"Petvita","version":"1.0","type":"link"}